MinerU: open-source document parser turns messy PDFs into LLM-ready Markdown
abhishek__AI · x · 2026-08-18
The tweet argues LLMs still struggle with messy documents, and MinerU fixes the input layer by converting PDFs, images and Office files into machine-readable Markdown/JSON.
Highlights:
- 100% open source, 77.8k GitHub stars
- CPU support, OCR for 109 languages
- 95.39 accuracy on OmniDocBench
- Handles complex layouts, tables, and formulas (formulas to LaTeX)
- Native DOCX/PPTX/XLSX parsing
- Ships an MCP Server plus native LangChain, Dify, FastGPT integrations
Positioned as a high-accuracy parsing engine for LLM, RAG and agent workflows.
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